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Fast internal dynamics in polyelectrolyte gels measured by dynamic light scattering
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SYSNO ASEP 0029602 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Fast internal dynamics in polyelectrolyte gels measured by dynamic light scattering Title Rychlá interní dynamika v polyelektrolytových gelech měřená dynamickým rozptylem světla Author(s) Rasmark, P. J. (SE)
Koňák, Čestmír (UMCH-V) RID
Štěpánek, Petr (UMCH-V) RID, ORCID
Elvingson, C. (SE)Source Title Polymer Bulletin. - : Springer - ISSN 0170-0839
Roč. 54, 4-5 (2005), s. 335-342Number of pages 8 s. Language eng - English Country DE - Germany Keywords polyelectrolyte gel ; dynamic light scattering ; poly(acrylic acid) Subject RIV CD - Macromolecular Chemistry R&D Projects IAA4050306 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GESON/03/E001 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40500505 - UMCH-V (2005-2011) Annotation Dynamic light scattering was used to investigate the dynamics of sodium poly(styrene sulfonate) and fully neutralized poly(acrylic acid) gels as a function of the degree of swelling and weight ratio of cross-linking agent. It was shown that the collective diffusion coefficient increases with increasing degree of swelling and that the diffusion coefficient shows stronger concentration dependence than predicted by scaling arguments. For gel samples measured at the swelling equilibrium, the diffusion coefficient increases with increasing gel concentration for both gel systems. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2006
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